package org.tomcat.demo.httpServer.staticResource;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;



public class HttpServer {
	/**
	 * WEB_ROOT is the directory where our HTML and other files reside. For this
	 * package, WEB_ROOT is the "webroot" directory under the working directory.
	 * The working directory is the location in the file system from where the
	 * java command was invoked.
	 */
	public static final String WEB_ROOT = System.getProperty("user.dir") + File.separator + "webRoot";
	// shutdown command
	static final String SHUTDOWN_COMMAND = "/SHUTDOWN";
	// the shutdown command received
	private boolean shutdown = false;

	public static void main(String[] args) {
		HttpServer server = new HttpServer();
		server.await();
	}

	public void await() {
		ServerSocket serverSocket = null;
		int port = 8080;
		try {
			serverSocket = new ServerSocket(port, 1, InetAddress.getByName("127.0.0.1"));
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		} 
		// Loop waiting for a request 
		while (!shutdown){ 
			Socket socket = null; 
			InputStream input = null;
			OutputStream output = null; 
			try { 
				socket = serverSocket.accept(); 
				input = socket.getInputStream();
				output = socket.getOutputStream(); 
				// create Request object and parse 
				Request request = new Request(input); 
				request.parse(); 
				// create Response object 
				Response response = new Response(output); 
				response.setRequest(request); 
				shutdown = response.sendStaticResource(); 
				// Close the socket 
				socket.close();
			} catch (Exception e) {
				e.printStackTrace ();
				continue; 
			}
		}
	}
}
